refactor(azure): Support state changes for updatePr (#7014)

lib/platform/azure/__snapshots__/index.spec.ts.snap

@@ -174,6 +174,20 @@ Object {
 }
 `;
 
+exports[`platform/azure updatePr(prNo, title, body) should close the PR 1`] = `
+Array [
+  Array [
+    Object {
+      "description": undefined,
+      "status": 2,
+      "title": "The New Title",
+    },
+    "1",
+    1234,
+  ],
+]
+`;
+
 exports[`platform/azure updatePr(prNo, title, body) should update the PR 1`] = `
 Array [
   Array [

lib/platform/azure/index.spec.ts

@@ -613,6 +613,24 @@ describe('platform/azure', () => {
       });
       expect(updatePullRequest.mock.calls).toMatchSnapshot();
     });
+
+    it('should close the PR', async () => {
+      await initRepo({ repository: 'some/repo' });
+      const updatePullRequest = jest.fn();
+      azureApi.gitApi.mockImplementationOnce(
+        () =>
+          ({
+            updatePullRequest,
+          } as any)
+      );
+      await azure.updatePr({
+        number: 1234,
+        prTitle: 'The New Title',
+        prBody: 'Hello world again',
+        state: PrState.Closed,
+      });
+      expect(updatePullRequest.mock.calls).toMatchSnapshot();
+    });
   });
 
   describe('ensureComment', () => {

lib/platform/azure/index.ts

@@ -3,8 +3,8 @@ import {
   GitPullRequest,
   GitPullRequestCommentThread,
   GitPullRequestMergeStrategy,
+  PullRequestStatus,
 } from 'azure-devops-node-api/interfaces/GitInterfaces';
-import { RenovateConfig } from '../../config/common';
 import { REPOSITORY_DISABLED } from '../../constants/error-messages';
 import { PLATFORM_TYPE_AZURE } from '../../constants/platforms';
 import { logger } from '../../logger';
@@ -390,15 +390,25 @@ export async function updatePr({
   number: prNo,
   prTitle: title,
   prBody: body,
+  state,
 }: UpdatePrConfig): Promise<void> {
   logger.debug(`updatePr(${prNo}, ${title}, body)`);
+
+  const status = {
+    [PrState.Open]: PullRequestStatus.Active,
+    [PrState.Closed]: PullRequestStatus.Abandoned,
+  }[state];
+
   const azureApiGit = await azureApi.gitApi();
   const objToUpdate: GitPullRequest = {
     title,
+    ...(status && { status }),
   };
+
   if (body) {
     objToUpdate.description = azureHelper.max4000Chars(sanitize(body));
   }
+
   await azureApiGit.updatePullRequest(objToUpdate, config.repoId, prNo);
 }